The Multiphase Circumgalactic Medium

Ringberg castle, 26 February - 3 March, 2023


Conference rationale:

Recent observational studies of the circumgalactic medium (CGM) of galaxies are pushing the field to uncharted territories thanks to the development of new facilities and instrumentation. The circumgalactic medium shows a multiphase nature (cold, cool, and warm-hot phases), with even molecular gas on the halo scales of massive systems at high redshifts. These results provide new constraints and pose new challenges for state-of-the-art cosmological simulations. The conference will bring together world leading experts – at all career stages – in the study of each of the different phases of the CGM from both observational and theoretical perspectives. The ultimate goal of the meeting is to (1) showcase the best observational strategies and constraints, (2) discuss tensions with current theoretical models, (3) discuss and propose novel strategies to deepen our understanding. This conference – given the multiwavelength approach - will be an opportunity for researchers who may not usually interact with each other to share ideas and create new collaborations.


Fabrizio Arrigoni Battaia
Guinevere Kauffmann
Max Gronke
Thorsten Naab


Fabrizio Arrigoni Battaia
Seok-Jun Chang
Vale Gonzalez-Lobos
Joanne Tan
Maria Depner